2007-2010 Honda FourTrax Rancher 420 TRX420 TRX Service Manual, Page 128Get this manual
Quality of the image is intentionally reduced!
LUBRICATION SYSTEM
DISASSEMBLY !INSPECTION
Remove the bolt and rotor side plate
Measure the rotor tip clearanceSERVICE LIMIT: 0.20 mm (0.008 in)
Measure the pump